ChatGPT
The general-purpose assistant that started the wave.
AI Chatbots & Assistants
DeepSeek offers strong free reasoning and very cheap API access; ChatGPT offers far more features around the model.
| Feature | ChatGPT | DeepSeek |
|---|---|---|
| Pricing | Free + PaidFree plan · Plus $20/mo · Team & Enterprise | Free + PaidFree app · API priced per token |
| Free to start | Yes | Yes |
| Best for | Anyone who wants one assistant that handles most tasks. | Budget-conscious builders and anyone who wants strong free reasoning. |
| Made by | OpenAI | DeepSeek |
| Launched | 2022 | 2023 |
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Pricing is what each tool's site lists; it changes often, so check before you buy.
Pick ChatGPT for a polished product with voice, images, files, memory and team plans.
Pick DeepSeek for free step-by-step reasoning, a low-cost API or open weights you can host yourself.
The general-purpose assistant that started the wave.
Strong reasoning models with a free chat app and cheap API.
Full details: ChatGPT · DeepSeek · see every option in AI Chatbots & Assistants
Neither is better for everyone. DeepSeek offers strong free reasoning and very cheap API access; ChatGPT offers far more features around the model. Pick ChatGPT for a polished product with voice, images, files, memory and team plans. Pick DeepSeek for free step-by-step reasoning, a low-cost API or open weights you can host yourself.
Both can be started for free. ChatGPT: Free plan · Plus $20/mo · Team & Enterprise. DeepSeek: Free app · API priced per token. Prices change often, so check the official site before you buy.
ChatGPT: Anyone who wants one assistant that handles most tasks. DeepSeek: Budget-conscious builders and anyone who wants strong free reasoning.
AltFTool is not affiliated with ChatGPT or DeepSeek. All comparisons